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About QR Codes

What are QR Codes ? 

QR (short for 'Quick Response') Codes are two dimensional barcodes. They can be encoded with information which, when scanned by a suitable QR code reader, can be accessed. The QR codes you get with your stickers here at the QR Code Stickers Shop are encoded either with the web address that you choose and will link directly through to it when scanned. 

QR Code Readers

The most common device for reading QR codes is the mobile phone. A number of mobile phones now come with a QR reader already installed. For those that don't, it's fairly straightforward to download and install a suitable 'app'.

QR Code Styles

We currently offer two styles of QR Codes for print. The industry standard 'Square' or a slightly softer looking 'Rounded' version. We only currently print in black ink. 

There are more options for QR Codes including with integrated logos and different colours and so on. The QR Code Stickers Shop is designed for cost effective production so we don't go down that route. 

QR Code display

Four basic rules.

Firstly, Clarity. QR Codes have error correction technology and can cope surprisingly well with distortion and even damage (for example, intentional 'damage' where a logo might be included). However, you want as many people as possible to scan quickly and easily and that means taking care to make sure it's clear and crisp. That's why we always recommend keeping your QR Code clean and simple. 

Secondly, Size. This depends a lot on your target audience and placement. There's little point printing a QR Code 1 inch / 3 cm big on a poster for example. Our advice is do a mockup, get a QR Code reader and test. Generally, avoid going smaller than 2 cm square.

Thirdly, Border. QR Codes require a little white space around them. This is called the 'quiet zone' and makes a significant difference to the ability of a reader to scan effectively. Don't get too hung up on exact sizes, but aim to keep a white space certainly no smaller than half the size of the top left QR code outer square. A full 'square's worth' of space would be more than adequate. All the QR Codes stickers sold here have an adequate amount of 'quiet zone'.

Fourthly, Contrast. QR Codes don't have to be black and white. In fact, the little squares don't even need to be square. There are some great examples in Japan of some highly modified QR Codes which scan very well. However, generally speaking you want the maximum number of people to scan with the minimum of fuss. That means high contrast (strong, dark colours) and avoiding pale yellow squares on a pale orange background ! 

Testing QR Codes

We strongly recommend that you get hold of a QR Code reader and test the QR Code at every stage of an offline print process. If you are ordering your stickers from us with your custom web address then we will send you a digital 'proof' for you to check. We cannot advise you strongly enough to check the scan works how you intended with a mobile phone. Test that it scans quickly and correctly and links through correctly. QR Codes (and our systems) are robust, but it's always better to spend a few seconds doing a test scan than have to bin a batch of stickers.

QR Code redirect

When you order stickers from us, you need to enter a single web address. This may be your website, Facebook page or some other location. If you want to track how many 'scans' you get, then you can use a link tracking system such as bitly or If you want to set your QR Code to link to multiple social networks or websites then consider a connection hub such as Seritag

QR Code costs

Generating and using a QR Code is free. How cool is that ? 

Who invented the QR Code ?

QR Codes were invented by a clever Japanese company called Denso Wave. The use of QR codes is free of any license but the term 'QR Code' is a registered trademark of Denso Wave Incorporated. Where you use the phrase 'QR Code', you are required to display the phrase 'QR Code is registered trademark of DENSO WAVE INCORPORATED' somewhere near. This is not required if you only use the QR Code image itself.

More information

You can get more information about QR Codes on Wikipedia and Denso Wave's official QR code website